Company lists · Data refreshed September 2026

Top 25 Environmental engineering firms based in India

Name: Environmental engineering firms based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 739 companies tracked

RevenueBase identified 739 environmental engineering firms headquartered in India as of September 2026 and tracks 17,452 professional contacts across them, including 1,673 with verified work emails. Pune is the largest hub.

This list covers environmental engineering firms headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

739Companies

17,452Contacts tracked

1,673Verified emails

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The 25 largest environmental engineering firms based in India

Ranked by team size

Top 25 of 739 environmental engineering firms based in India, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to environmental engineering firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ION Exchange India LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 16, 2026	1,001-5,000	3,810 contacts →
	Partial evidence “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Source: RevenueBase Database · checked Sep 16, 2026
2	Burns & Mcdonnell India	Indirect evidence	Vikhroli West, IndiaHQ checked Sep 16, 2026	1,001-5,000	1,724 contacts →
	Indirect evidence “At Burns & McDonnell India, we are a diverse team of talented engineers with multidiscipline design and consultancy working across sectors in critical infrastructure: oil and gas…” Source: RevenueBase Database · checked Sep 16, 2026
3	M. N. Dastur & Co. P LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 16, 2026	1,001-5,000	894 contacts →
	Indirect evidence “M.” Source: RevenueBase Database · checked Sep 16, 2026
4	Clean Harbors India	Indirect evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	1,001-5,000	450 contacts →
	Indirect evidence “Clean Harbors India has been strategically established as the Global Capability Center (GCC) to serve our parent company.” Source: RevenueBase Database · checked Sep 16, 2026
5	HECS	Partial evidence	Chennai, IndiaHQ checked Sep 16, 2026	1,001-5,000	356 contacts →
	Partial evidence “We are India’s Leading Environmental Management Company and Service Provider, serving as a catalyst to the cause of Environmental preservation for the Industrial and Domestic…” Source: RevenueBase Database · checked Sep 16, 2026
6	Luthra Group	Indirect evidence	Surat, IndiaHQ checked Sep 16, 2026	201-500	314 contacts →
	Indirect evidence “The Luthra Group is one of the leading and well equipped processing house of Surat, which ever since its inception has been moving ceaselessly on a growth track.” Source: RevenueBase Database · checked Sep 16, 2026
7	Fichtner Consulting Engineers India Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 16, 2026	51-200	285 contacts →
	Indirect evidence “FICHTNER INDIA, part of Fichtner Group, is a subsidiary of Fichtner GmbH & Co.” Source: RevenueBase Database · checked Sep 16, 2026
8	Sima Labs	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	51-200	211 contacts →
	Partial evidence “Incorporated in the year 1988, SIMA LABS is offering analytical testing services in the field of food products, pharmaceuticals & environment.” Source: RevenueBase Database · checked Sep 16, 2026
9	HNB Engineers Pvt. LTD	Indirect evidence	Pune, IndiaHQ checked Sep 16, 2026	201-500	191 contacts →
	Indirect evidence “HNB ENGINEERS PVT.” Source: RevenueBase Database · checked Sep 16, 2026
10	Lead Consultancy And Engineering Services India PVT LTD	Partial evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	51-200	174 contacts →
	Partial evidence “LEAD Consultancy & Engineering Services (India) Private Limited (LCES) has been started by a team of qualified professionals with vast experience and expertise in the areas of…” Source: RevenueBase Database · checked Sep 16, 2026
11	Clancy Global, Consulting Engineers For The Built Environment	Strong evidence	Mumbai, IndiaHQ checked Sep 16, 2026	51-200	151 contacts →
	Strong evidence “With a 'core' of built environment sciences & engineering; we deliver expertise comparable to globally cutting-edge applications of workflows & available technologies.” Source: RevenueBase Database · checked Sep 16, 2026
12	Vardan Envirolab LLP	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 2026	201-500	142 contacts →
	Indirect evidence “Vardan EnviroNet is an organization of senior state and central government retired officers from various departments like Pollution Control Board, Mines & Geology, Public Sector…” Source: RevenueBase Database · checked Sep 16, 2026
13	Ayoleeza Consultants Pvt. LTD	Partial evidence	Noida, IndiaHQ checked Sep 16, 2026	201-500	137 contacts →
	Partial evidence “Ayoleeza Consultants Pvt.Ltd (ISO 9001: 2015 Certified) is one of the emergent engineering Consultancy Firms in India with a dedicated team providing integrated services in the…” Source: RevenueBase Database · checked Sep 16, 2026
14	Multi Mantech INT PVT LTD	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 16, 2026	201-500	117 contacts →
	Indirect evidence “Multi Mantech International Pvt.” Source: RevenueBase Database · checked Sep 16, 2026
15	Meinhardt India	Indirect evidence	Smartworks Tower A, IndiaHQ checked Sep 16, 2026	201-500	115 contacts →
	Indirect evidence “Meinhardt is one of the leading international consultancies.” Source: RevenueBase Database · checked Sep 16, 2026
16	Kadam Environmental Consultants	Partial evidence	Vadodara, IndiaHQ checked Sep 16, 2026	n/a	115 contacts →
	Partial evidence “Company Kadam was founded in 1981 : The company has over 150 engineers, scientists and technicians with specialization in various interdisciplinary areas such as environmental…” Source: RevenueBase Database · checked Sep 16, 2026
17	Netel India Pvt.Ltd	Partial evidence	Rabale-new Mumbai, IndiaHQ checked Sep 16, 2026	51-200	111 contacts →
	Partial evidence “NETEL (INDIA) Limited, a part of Neterwala Group of Companies is one of the leading organizations in India in the field of Analytical Instruments, Environmental Instruments…” Source: RevenueBase Database · checked Sep 16, 2026
18	ABC Techno Labs India Private Limited	Strong evidence	Chennai, IndiaHQ checked Sep 16, 2026	201-500	110 contacts →
	Strong evidence “ABC Techno Labs is a leading Environmental,Health and Safety Engineering Consultancy and Laboratory constantly striving towards newer heights since its inception in 2006.” Source: RevenueBase Database · checked Sep 16, 2026
19	Lombardi Engineering India Pvt. LTD	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	51-200	109 contacts →
	Partial evidence “Part of Lombardi Group, we are an independent company of consulting engineers involved in the design and construction of major civil engineering projects.” Source: RevenueBase Database · checked Sep 16, 2026
20	Effwa Infra & Research LTD	Strong evidence	Thane, IndiaHQ checked Sep 16, 2026	51-200	104 contacts →
	Strong evidence “Effwa offers sustainable and innovative high-end engineering solutions to the environmental issues faced by various Industries and Municipal Authorities in India and overseas.” Source: RevenueBase Database · checked Sep 16, 2026
21	Ecometrix Consultants	Partial evidence	Bhubaneswar, IndiaHQ checked Sep 16, 2026	51-200	93 contacts →
	Partial evidence “Ecometrix Consultants Private Limited (EMC) is an ISO 9001:2015 Quality Certified consulting Firm focusing on water, wastewater & environment.” Source: RevenueBase Database · checked Sep 16, 2026
22	DMR Engineering Limited	Partial evidence	Faridabad, IndiaHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “DMR Engineering Limited is a leading engineering consulting company with deep expertise in design and engineering across water, energy and infrastructure projects.” Source: RevenueBase Database · checked Sep 16, 2026
23	S3m Design Consultants LLP	Partial evidence	Ahmedabad, IndiaHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “S3M Design Consultants LLP is a professional Design firm evolved out of vast experience of the founders in the field of Planning & Design Engineering.” Source: RevenueBase Database · checked Sep 16, 2026
24	Pankaj Dharkar & Associates - India	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	51-200	84 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	ECO Protection Engineers - India	Partial evidence	Chennai, IndiaHQ checked Sep 16, 2026	201-500	83 contacts →
	Partial evidence “Eco Protection Engineers - India is a civil engineering company based out of 943 54th Street, T V S Colony, Anna Nagar Western Extension, Chennai, Tamil Nadu, India.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: environmental engineering firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names environmental engineering firms.
Partial evidence: Its own public description names part of environmental engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental engineering firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 739 environmental engineering firms based in India

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Environmental engineering firms based in India at a glance

As of Sep 16, 2026

9.6%Verified-email coverage

23.6Average contacts per company

11-50Median size (employees)

7.8%Largest-city concentration · Pune

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

230

11-50

290

51-200

157

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 739 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among environmental engineering firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in India whose own description of what they do matches “environmental engineering firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names environmental engineering firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among environmental engineering firms, and records with no verified work email. Companies headquartered outside India are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,673 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Environmental engineering firms by metro

Environmental engineering firms in Pune58
Environmental engineering firms in Ahmedabad46
Environmental engineering firms in Mumbai42
Environmental engineering firms in New Delhi38
Environmental engineering firms in Chennai33
Environmental engineering firms in Bangalore28
Environmental engineering firms in Kolkata28

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names environmental engineering firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many environmental engineering firms are there based in India?

RevenueBase identified 739 environmental engineering firms headquartered in India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ION Exchange India LTD, headquartered in Mumbai, tops this list with the largest team on record.

Which city has the most environmental engineering firms?

Pune leads with 58 headquartered companies, followed by Ahmedabad (46) and Mumbai (42).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,673 verified decision-maker contacts tracked across these 739 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.